Improve the PDB Shell Tests

[JDevlieghere]

It would be great if we could improve the PDB shell tests so that:

1. Every PDB test automatically run with the NativePDB and DIA PDB implementation
2. Every PDB test only run once when DIA support is disabled (today they run twice)

This is currently controlled by LLDB_USE_NATIVE_PDB_READER which is set at the directory level in lit.local.cfg in the PDB and NativePDB subdirectories. If there was a way to make every test in the PDB directory run twice, once with that variable set and once without it, that would address this. I'm not sure if something like that is possible (without trickery like symlinks).

[llvmbot]

@llvm/issue-subscribers-lldb

Author: Jonas Devlieghere (JDevlieghere)

It would be great if we could improve the PDB shell tests so that:

1. Every PDB test automatically run with the NativePDB and DIA PDB implementation
2. Every PDB test only run once when DIA support is disabled (today they run twice)

This is currently controlled by LLDB_USE_NATIVE_PDB_READER which is set at the directory level in lit.local.cfg in the PDB and NativePDB subdirectories. If there was a way to make every test in the PDB directory run twice, once with that variable set and once without it, that would address this. I'm not sure if something like that is possible (without trickery like symlinks).